Roseanna a Martin Beck mystery

Maj Sjöwall and Per Wahlöö, her husband and coauthor, wrote ten Martin Beck mysteries. They plotted and researched each book together then wrote alternate chapters. The books were written over a ten year period and carefully planned to allow for gradual character development and evolving social commentary as the series continued. Mr Wahloo, who died in 1975, was a reporter for several Swedish newspapers and magazines and wrote numerous radio and television plays, film scripts, short stories, and novels. Maj Sjöwall is also a poet.